import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/login'
import Home from '../components/Home'
import Welcome from '../components/Welcome'
import Users from '../components/user/Users'
import Rights from '../components/power/Rights'
import Roles from '../components/power/Roles'

Vue.use(VueRouter)

const routes = [
  { path: '/', redirect: '/login' },
  { path: '/login', component: Login },
  {
    path: '/home',
    component: Home,
    redirect: '/welcome',
    children: [{
      path: '/welcome',
      component: Welcome
    }, {
      path: '/users',
      component: Users
    }, {
      path: '/rights',
      component: Rights
    }, {
      path: '/roles',
      component: Roles
    }
    ]
  }
]

const router = new VueRouter({
  routes
})

router.beforeEach((to, from, next) => {
  // 用户访问登录页面直接放行
  if (to.path === '/login') return next()
  // 获取sessionStorage中的token值
  const tokenStr = window.sessionStorage.getItem('token')
  // 没有token则强制跳转到登录页
  if (!tokenStr) return next('/login')
  // 有则放行
  next()
})
export default router
